Renesas X9317TM8IZ-2.7

Overview

X9317TM8IZ-2.7 from Intersil is a digitally controlled potentiometer (XDCP™) with 100-tap resolution, nonvolatile wiper position storage, and 100 kΩ end-to-end resistance. It operates from 2.7V to 5.5V, features a 3-wire up/down serial interface, and delivers ±20% RTOTAL tolerance with ±300 ppm/°C temperature coefficient. It serves as a solid-state replacement for mechanical potentiometers in precision analog trim applications.

For engineers reviewing the X9317TM8IZ-2.7 datasheet, X9317TM8IZ-2.7 pinout, X9317TM8IZ-2.7 application, or X9317TM8IZ-2.7 equivalent, key selection criteria include supply voltage range (2.7–5.5 V), industrial temperature rating (−40°C to +85°C), MSOP-8 package compatibility, wiper current limits (±4.4 mA), and nonvolatile store/reload behavior on power-up.

Technical Context

The X9317TM8IZ-2.7 implements a 99-element resistor array with electronically switched wiper access at 100 discrete tap points (0–99). Its control logic uses a 7-bit counter decoded to select one wiper position, with "make-before-break" switching to prevent open-circuit transients during movement.

Wiper position is stored in nonvolatile memory upon CS↑ while INC = HIGH, enabling automatic recall at power-up. The device supports both three-terminal voltage divider and two-terminal variable resistor configurations, with RH, RL, and RW terminals electrically equivalent to mechanical potentiometer terminals.

Key Specifications

Pinout & Package

Package: 8-lead MSOP (M8.118), RoHS-compliant, 3.0 mm × 3.0 mm × 1.1 mm body height, thermal resistance θJA = 145°C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digitally controlled potentiometer applications.

Compared with AD5243BRMZ100 and MCP45HV51-104E/MS, the X9317TM8IZ-2.7 uniquely combines single-pot simplicity, guaranteed nonvolatile recall, and industrial temperature support in an MSOP-8 footprint-making it optimal for cost-sensitive, self-contained trim applications without host processor dependency.

Availability

X9317TM8IZ-2.7 is available at Aetrix Electronics and suitable for LCD bias control, laser diode bias control, and voltage regulator output trim requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for X9317TM8IZ-2.7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Intersil Corporation is a precision analog and power management semiconductor provider, now part of Renesas Electronics, with expertise in high-reliability industrial and infrastructure solutions.

The X9317 product line was designed for solid-state replacement of mechanical potentiometers in analog trimming, bias control, and calibration-critical systems where nonvolatile setting retention and temperature stability are essential.

FAQ

What is the supply voltage range for the X9317TM8IZ-2.7?

The X9317TM8IZ-2.7 operates from 2.7 V to 5.5 V, supporting both 3.3 V and 5 V logic systems without external level translation. This range is explicitly specified in the Absolute Maximum Ratings and Potentiometer Specifications tables of the FN8183 Rev 9.00 datasheet, and applies across the full −40°C to +85°C operating temperature range.

Does the X9317TM8IZ-2.7 retain its wiper position after power cycling?

Yes, the X9317TM8IZ-2.7 stores the wiper position in nonvolatile memory and automatically recalls it on power-up. This behavior is confirmed in the datasheet's "Principles of Operation" section and validated by the "Endurance and Data Retention" specification: 100 years of data retention at full temperature range ensures reliable recall throughout product life.

What package type does the X9317TM8IZ-2.7 use?

The X9317TM8IZ-2.7 uses an 8-lead MSOP package (package drawing M8.118), measuring 3.0 mm × 3.0 mm × 1.1 mm with gull-wing leads. This is explicitly stated in the Ordering Information table on page 2 of FN8183 Rev 9.00, and the mechanical dimensions are detailed in the Package Outline Drawing on page 11.

How many wiper tap positions does the X9317TM8IZ-2.7 provide?

The X9317TM8IZ-2.7 provides exactly 100 wiper tap positions (0 through 99), corresponding to 99 resistive elements in its linear array. This is confirmed in the device description on page 1 ("100 wiper tap points"), the block diagram caption ("HUNDRED"), and the Resolution specification (1%) on page 4 of FN8183 Rev 9.00.

Can the X9317TM8IZ-2.7 be used as a two-terminal variable resistor?

Yes, the X9317TM8IZ-2.7 can be configured as a two-terminal variable resistor by connecting either RH or RL to RW and using the remaining terminal with RW. The datasheet explicitly states this capability on page 1 ("used as a two-terminal variable resistor for current control") and illustrates it in Figure 4 ("TWO TERMINAL VARIABLE RESISTOR; VARIABLE CURRENT").